So I posted previously regarding trying to find a solution for mating a np205/350 to a sm465 so I can have a 4 speed and while there was good input, I didn't get an answer on what was needed to complete the swap. That said, I'm going back to the trough for wisdom on another issue. As I previously discussed, I'm pulling together a '57 willys wagon to chevy k20 chassis swap and am currently in the process of getting the 350 up and going, at least for the short term. It's a '73 and as such the choke is a copper coil mounted on the intake manifold. The other end of the choke mechanism is the vacuum diaphragm. Neither are working correctly. The diaphragm is leaking and the choke coil is damaged. The coil cannot be ordered through parts stores and I don't have ready access to a salvage yard.

This brings me to my question... Phew. Is there a good / easy / cheap option for swapping out an electric or vacuum choke for this carb? I'll attach pictures